VI Editor is like notepad in UNIX but it’s extremely powerful and have sophisticated feature to work as complete IDE. No matter which version of UNIX you are working or which flavor you are using you always find either VI editor or VIM there. VI is a very large topic and I am not covering every aspect of it what I am sharing here is some examples of using VI editor in UNIX or Linux. most of the time we use only 10% of VI editor and never know 90% of it , to be frank I also don't know many of VI feature by heart but I always search for it , see people working in VI and learn from there experience as well. after working on VI editor what I found that every day we learn something new in VI editor but we forget something equally important and there I thought lets document whatever VI commands I have learned so far and using regularly. Idea is to keep this VI Editor tutorial updated with every single useful VI commands I learn and I also ask you guys to contribute with something useful. If you see 10 peoples working in VI editor you realize that they use it differently then use some new VI commands which you are not familiar of and which could improve your productivity as well. so if you would like to know more and more about VI editor I would suggest observe people around you when they work in VIM or VI editor and learn from there experience. Don’t confuse with both VIM and VI, VIM stands for VI improved and has some more feature than VI editor. Many a times you will find that VI command is aliased to VIM to make it default editor in UNIX.
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